Calmonia subseciva Clarke 



Fig. I An extended specimen from which the cephalon has been 

 broken 



2 A squeeze taken from the foregoing, showing the cephaHc 



doublure and phacopid hypostoma. x 2 

 Locality: Ponta Grossa, Brazil 



3 An entire specimen, slightly crushed about the head, 



showing the minute pygidial lappets 



4 A nearly entire individual of large size 

 Locality: Jaguariahyva, Sao Paulo, Brazil 



Proboloides cuspidatus Clarke 



Fig. 5 A small cephalon 



6 A laterally crushed specimen displaying a part of the 



proboscis, the sutural and genal spines and the acute 

 spinules of the first thoracic segments 



7 A cheek with sutural and genal spines, x i-| 



8 A cephalon with its long proboscis, «howing also the 



genal spine and base of the sutural spine 



9 Large cephalon with proboscis broken 

 Locality: Ponta Grossa, Brazil 



Proboloides pessulus Clarke 



Fig. 10 A specimen with all parts conjoined; showing the aspect 

 of the head, its proboscis and sutural spines, the 

 sharply terminated thoracic segments and apparently 

 smooth margined pygidium 

 Locality: Jaguariahyva, Sao Paulo, Brazil 



160 



